I just got one in 6.5x55 and I love it. It replaces a Sauer 202 in the same calibre and is much lighter, more rugged and just as accurate. I bought it second-hand on the site and it came already fitted with the bipod stud. Great safety, 5+1 capacity (Sauer was 3+1) and very well built with a longer comb length. The stock is very well made and no flexing of the fore end.
It came with recknagel bases so I got a pair of rings from Alan Rhone (9.5mm) to match. The bases are 5mm high. Was considering a picatinny rail, which are 6mm high. I might still do that as it will allow me to mount the scope using their lower 6mm rings. I do like a low mounted scope. I have a S&B Zenith 3-12x50 on at the moment and have maybe 2/3mm clearance due to the ocular bell shape.
All in all, a great rifle. Some people will moan about the fact it can't be re-barrelled but frankly, I doubt I'll ever have the need, and if I do it'll be so far down the line that I'll most probably be replacing it for a newer model.
See attached pictures of the scope and mounts. Couldn't recommend Alan Rhone any higher, I emailed before ordering and he was very helpful with ensuring I ordered the right height rings and clarifying the choices/options, without leading me one way or the other, particularly with regards to cost. The mounts were just over £100. I think the bases for the Mauser are £20 odd for two Weaver (Recknagel) or just around £50 odd for a picatinny rail (Recknagel). The rail will allow you to use different rings including Contessa, which are meant to be pretty good. Recknagel do a QD one, same price. I went for a fixed tri-nut ones as I had Apel swing-off on my Sauer and had no real use for them. Each their own. Good luck, you won't regret it. I bought it as I like something a bit different and while it is upsetting for the purists, sharing barrels between Sauer, Mauser and Blaser has to be a good thing.